For use in modern industrial automation, a sweep-type triboelectric linear motion sensor (ST-TLMS) is demonstrated that can monitor the position, displacement, velocity and direction of sliding objects. The ST-TLMS consists of a slider, a stator, and an acrylic groove box for housing them. They are configured allowing a flexible copolymer film to be fixed on the slider and moves with it and the stator to be coated with three pairs of copper electrode arrays arranged uniformly. The phases of adjacent pairs of electrodes are staggered by one third. Three periodic friction electrical signals are generated on the copper electrode by the back and forth sweeping of the stator and film. The experimental results show that the output amplitude after voltage amplification and signal processing remains basically unchanged at different sliding velocities, showing good stability. More importantly, the dominant frequency of the signal is consistent with the sliding velocity. Through real-time noise reduction and the signal transformation of the three output signals, the resolution and accuracy of the motion perception are effectively improved. Additionally, after 32 h of continuous operation, the output signal of the sensor had not decayed, which meets the requirements of durability in practical applications.

为了在现代工业自动化中使用，展示了一种可监视滑动物体的位置，位移，速度和方向的扫掠型摩擦线性运动传感器（ST-TLMS）。ST-TLMS由一个滑块，一个定子和一个用于容纳它们的丙烯酸槽盒组成。它们被配置为允许将柔性共聚物膜固定在滑块上，并随滑块和定子一起移动，并用均匀排列的三对铜电极阵列涂覆定子。相邻电极对的相位错开三分之一。通过定子和薄膜的来回扫掠，在铜电极上产生三个周期性的摩擦电信号。实验结果表明，在不同的滑动速度下，电压放大和信号处理后的输出幅度基本保持不变，显示出良好的稳定性。更重要的是，信号的主导频率与滑动速度一致。通过实时降噪和三个输出信号的信号转换，可以有效提高运动感知的分辨率和精度。另外，在连续运行32小时后，传感器的输出信号没有衰减，符合实际应用中的耐用性要求。